The singer (29) confirmed on Instagram today that the she got engaged to her “soulmate” on December 18.
“I said YES! Smiling as I type this because it was the best day ever in Paris and so unexpected.”
“My soul mate and my love asked me something that I could only have dreamt of. Being in love is one of the most magical feelings life has to offer.”
She added: “So grateful for this amazing man in my life who has supported my family and I through so much.”
Burke paid tribute to her late mother, Soul II Soul singer Melissa Bell, who passed away after a nine-year battle with kidney failure in August aged 53.
And she said the couple chose to delay announcing the news to the public so they could enjoy the special moment.
“We decided to keep this between us for a while to enjoy this special moment and that’s why we haven’t said anything... Something so amazing honestly felt so overwhelming because there was only one person I wanted to call when it happened. I know she is smiling and very happy for us both - because little did I know she knew about it.”
Alexandra and Josh are believed to have started dating in April 2016.
“For those who guessed and have left such beautiful messages - thank you.”
“Josh is someone who makes me so happy and I’ve never felt this kind of love before.”
“Here’s to an amazing future that’s filled with love, joy and so much happiness.”
“I love you Joshua Ginnelly. I can’t wait to see what our future brings and what God provides for us xxx”